[lkml]   [2012]   [May]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: read() syscall slowing down due to other threads?
On Mon, Apr 30, 2012 at 11:40 PM, Nick Piggin <> wrote:
> It could be memory or coherency traffic that's causing a slowdown across
> the system?
> Could a dynamic core frequency / thermal throttling explain any of the
> slowdown?

Thanks for these suggestions. I checked the BIOS, and indeed it was
set to "Hybrid power/performance." I just reset the server to "Static
high performance" which I believe turns off processor frequency power
optimizations. I'll re-run our workload and see if that has an

Thanks, George

 \ /
  Last update: 2012-05-01 15:01    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean